unpkg/modules/client/main/WindowSize.js

36 lines
730 B
JavaScript

const React = require("react");
const PropTypes = require("prop-types");
const addEvent = require("../utils/addEvent");
const removeEvent = require("../utils/removeEvent");
const resizeEvent = "resize";
class WindowSize extends React.Component {
static propTypes = {
onChange: PropTypes.func
};
handleWindowResize = () => {
if (this.props.onChange)
this.props.onChange({
width: window.innerWidth,
height: window.innerHeight
});
};
componentDidMount() {
addEvent(window, resizeEvent, this.handleWindowResize);
}
componentWillUnmount() {
removeEvent(window, resizeEvent, this.handleWindowResize);
}
render() {
return null;
}
}
module.exports = WindowSize;